Fatal error: Uncaught Error: Class 'Core\Authentication\CoreAuth' not found in /home/demo4ev/public_html/RAUSHAN/vendor/apimatic/core/tests/Mocking/Authentication/HeaderAuthManager.php:8 Stack trace: #0 {main} thrown in /home/demo4ev/public_html/RAUSHAN/vendor/apimatic/core/tests/Mocking/Authentication/HeaderAuthManager.php on line 8